PDRA to allow 50% Nitro, Injected Nitro PM's - Page 2 - Yellow Bullet Forums
;

Go Back   Yellow Bullet Forums > Fire your bullets!!! > Pro Modified

Notices

Pro Modified Talk about Pro-Mod racing with censorship...

Reply
 
Thread Tools Display Modes
Old 05-24-2017, 04:58 PM   #16
superd54
Senior Member
Smoked Another SBC
 
superd54's Avatar
 
Join Date: Mar 2006
Location: Belleville, Ontario, Canada.
Posts: 7,723
Smile Re: PDRA to allow 50% Nitro, Injected Nitro PM's

I would say 4.50-70 in the quarter on a clean hit.
Just a guess.

Dave...

Quote:
Originally Posted by VegaEddie View Post
Just out of curiosity, what do you guys think a full on nitro combo would do in a PX style door car? Realistically speaking. 1/8 or 1/4.
__________________
I hear a Blower Car.

Last edited by superd54; 05-24-2017 at 04:59 PM.
superd54 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-24-2017, 05:35 PM   #17
1QuickBird
Senior Member
Smoked Another SBC
 
1QuickBird's Avatar
 
Join Date: Nov 2006
Location: Da Grove
Posts: 6,434
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

We never ran any PX type numbers, but on our old Chevy 10% would make a little noise and get people looking at us funny.. 20% was a pretty decent performance difference, now we were not pushing our stuff to the edge so maybe there was more to be found.
__________________
WWW.LEGENDRACINGENT.COM
https://www.facebook.com/LREhorsepower

Midwest Muscle Car Specialists
High Performance engine builders
Induction Solutions Midwest dealer

1QuickBird is offline   Reply With Quote
Old 05-24-2017, 05:47 PM   #18
Jim Wiens
Senior Member
Smoked another BBC
 
Jim Wiens's Avatar
 
Join Date: Oct 2005
Posts: 3,163
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Quote:
Originally Posted by superd54 View Post
I would say 4.50-70 in the quarter on a clean hit.
Just a guess.

Dave...

/8
little slower than that i worked on a few top fuel cars back in the 1/4 mile days 4.50 was a awesome run i would think a 5.20 maybe 3.50 to the 1/8 with a safe tune up and a full block and crank only in the car rebuild every run
__________________
Jim Wiens race cars professional race car construction,Billet cnc components,turbo EFI installation, Block and Cylinder head repair
Nixa Missouri

Thanks to:
Mr Harry Hruska
Precision Turbo & Engine
Joe Oplawski Hyperaktive
Tommy Faust TF PERFORMANCE CLUTCHES
Jim Wiens is offline   Reply With Quote
Old 05-24-2017, 08:00 PM   #19
FlyinOhioan
Senior Member
Smoked another BBC
 
FlyinOhioan's Avatar
 
Join Date: Jan 2010
Location: Ohio
Posts: 1,301
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

I doubt anyone will try this but you never know .
FlyinOhioan is offline   Reply With Quote
Old 05-24-2017, 10:23 PM   #20
Joe_K
OL 10.5 TTF
Smoked Another SBC
 
Joe_K's Avatar
 
Join Date: Jul 2012
Location: Berks County, PA
Posts: 11,491
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Awesome!! Props to anybody that tries it.
__________________


Joe_K is online now   Reply With Quote
Old 05-25-2017, 12:00 AM   #21
promodvette
Banned
Smoked Another SBC
 
promodvette's Avatar
 
Join Date: Jul 2007
Posts: 8,703
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Quote:
Originally Posted by Jim Wiens View Post
/8
little slower than that i worked on a few top fuel cars back in the 1/4 mile days 4.50 was a awesome run i would think a 5.20 maybe 3.50 to the 1/8 with a safe tune up and a full block and crank only in the car rebuild every run
If I did the math right, based off their speeds, Hagen would have been a mid 4.40 to the 1/4 and B. Force a mid 4.30 if they didn't accelerate at all the last 320 ft. So thinking a full tilt nitro pro mod would go a bit slower, 4.80's maybe .70's?
promodvette is offline   Reply With Quote
Old 05-25-2017, 12:14 AM   #22
cOMP461
Senior Member
Smoked another BBC
 
cOMP461's Avatar
 
Join Date: Oct 2010
Location: ALEDO TEXAS
Posts: 1,491
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Quote:
Originally Posted by Jim Wiens View Post
A/F( injected) needs 90 minimum to work and like a blown Nostalgia style set up is going to need clutch serviced pan dropped maybe heads pulled every run not a fun deal for an adrl race
I saw a Bruno Set up behind a A/Fuel motor not to long ago and its was in a Pro Mod. I believe that the idea set up for A/Fuel style motor could be a convertor with a lock up.
__________________
Competition Eliminator D/ed , C/ed
Texas Mile
http://www.facebook.com/COMP461



G.M. Racing ChevyDmax clean Diesel Top Dragster






It is not necessary to build a swimming pool to determine that a bowling ball won't float." .....Zora Arkus-Duntov
cOMP461 is offline   Reply With Quote
Old 05-25-2017, 03:58 AM   #23
TheRevII
Senior Member
Smoked Another SBC
 
TheRevII's Avatar
 
Join Date: Mar 2011
Location: North Central Texas
Posts: 26,378
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Quote:
Originally Posted by promodvette View Post
So thinking a full tilt nitro pro mod would go a bit slower, 4.80's maybe .70's?
I'd say low 5s, and only then if it was equipped with enough aero aids to keep it on the track.

I'd love to listen to the cackle from cars running 50%, but I pity the car owner who tries to convert his blown alcohol combination to 1/2 nitro - because his work load and expense just tripled. That shit is HARD on engines.
__________________
Carl
IDGAS Group Charter Member
TheRevII is offline   Reply With Quote
Old 05-25-2017, 07:58 AM   #24
VegaEddie
Senior Member
Smoked Another SBC
 
VegaEddie's Avatar
 
Join Date: Oct 2008
Location: Poconos
Posts: 6,369
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Quote:
Originally Posted by TheRevII View Post
I'd say low 5s, and only then if it was equipped with enough aero aids to keep it on the track.
Depending on how much wicker is in the car, Pro Mods can be pinned to the track with fully compressed shocks before they reach the 1/4 mile stripe at current door car speeds. Question is, with a full tilt nitro deal, can they be kept pointing straight for the whole pass.

As a point of comparison, John Zappia has been 5.60s at 2700+ pounds and limited overdrive with a D rotor screw. He feels at 2275 pounds he could go high 5.20s. I'd say a nitro deal would be quicker if a clean pass could be made.
VegaEddie is offline   Reply With Quote
Old 05-25-2017, 10:06 AM   #25
Jim Wiens
Senior Member
Smoked another BBC
 
Jim Wiens's Avatar
 
Join Date: Oct 2005
Posts: 3,163
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Quote:
Originally Posted by promodvette View Post
If I did the math right, based off their speeds, Hagen would have been a mid 4.40 to the 1/4 and B. Force a mid 4.30 if they didn't accelerate at all the last 320 ft. So thinking a full tilt nitro pro mod would go a bit slower, 4.80's maybe .70's?
Those numbers are based on a ''on kill'' tune up .Just my opinion you will not have the down force with a standard bodied shocks on all 4 sides pro mod . The motor has to be loaded so hard to make all of that work.clutch starts coming in hard @ 300 feet wont be enough load on the tires at that point.........Even a low 5 would be quite an accomplishment. But you are talking a full tear down of the motor and clutch every run can it be done hell yes !!!!!! That would be a cool deal to be part of. Palmers car has a solid mounted rear end like a F/C the current rules require shocks and springs on all 4 sides no solid suspensions lol would love to see a shock graph with 10,000 lbs of down force on the rear tires @ 300 mph
__________________
Jim Wiens race cars professional race car construction,Billet cnc components,turbo EFI installation, Block and Cylinder head repair
Nixa Missouri

Thanks to:
Mr Harry Hruska
Precision Turbo & Engine
Joe Oplawski Hyperaktive
Tommy Faust TF PERFORMANCE CLUTCHES
Jim Wiens is offline   Reply With Quote
Old 05-25-2017, 10:16 AM   #26
superd54
Senior Member
Smoked Another SBC
 
superd54's Avatar
 
Join Date: Mar 2006
Location: Belleville, Ontario, Canada.
Posts: 7,723
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Yes, sorry, I was guessing off a 1000 ft pass, my mistake.
I'll go 5.0's, but not @ 50%.

Dave...

Quote:
Originally Posted by Jim Wiens View Post
/8
little slower than that i worked on a few top fuel cars back in the 1/4 mile days 4.50 was a awesome run i would think a 5.20 maybe 3.50 to the 1/8 with a safe tune up and a full block and crank only in the car rebuild every run
__________________
I hear a Blower Car.
superd54 is offline   Reply With Quote
Old 05-25-2017, 10:18 AM   #27
Stan Weiss
Senior Member
Smoked another BBC
 
Stan Weiss's Avatar
 
Join Date: Feb 2012
Location: Philadelphia, PA
Posts: 1,335
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Quote:
Originally Posted by promodvette View Post
If I did the math right, based off their speeds, Hagen would have been a mid 4.40 to the 1/4 and B. Force a mid 4.30 if they didn't accelerate at all the last 320 ft. So thinking a full tilt nitro pro mod would go a bit slower, 4.80's maybe .70's?
Yes, on Matt's 3.802 et @ 338.85 MPH run I get a 4.446 et for the 1/4 with constant velocity for the last 320 feet.

Stan
__________________
Stan Weiss / World Wide Enterprises
Do you use engine simulation software that uses cylinder head flow files?
We have a package of more than 2975 DFW or FLW Files.
http://www.erols.com/srweiss/index.html
Offering Performance Software Since 1987
Stan Weiss is offline   Reply With Quote
Old 05-25-2017, 02:59 PM   #28
TheRevII
Senior Member
Smoked Another SBC
 
TheRevII's Avatar
 
Join Date: Mar 2011
Location: North Central Texas
Posts: 26,378
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Quote:
Originally Posted by Stan Weiss View Post
Yes, on Matt's 3.802 et @ 338.85 MPH run I get a 4.446 et for the 1/4 with constant velocity for the last 320 feet. Stan
Well, since you're so good with numbers , estimate how much horsepower it took to push Hagen to 338. A couple of years ago, a device was attached to one of Schumacher's cars - I forgot all the details - and the calculated horsepower employed on one of their 330mph passes was slightly over 11,000.

I still can't wrap my head around a 500-inch reciprocating piston engine producing that kind of power, regardless of what kind of fuel and boost it's running. It just doesn't seem physically possible.
__________________
Carl
IDGAS Group Charter Member
TheRevII is offline   Reply With Quote
Old 05-25-2017, 03:01 PM   #29
VegaEddie
Senior Member
Smoked Another SBC
 
VegaEddie's Avatar
 
Join Date: Oct 2008
Location: Poconos
Posts: 6,369
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

The 10-11,000hp estimate is usually a calculation based on fuel consumption during the run.
VegaEddie is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-25-2017, 03:39 PM   #30
TheRevII
Senior Member
Smoked Another SBC
 
TheRevII's Avatar
 
Join Date: Mar 2011
Location: North Central Texas
Posts: 26,378
Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

Quote:
Originally Posted by VegaEddie View Post
The 10-11,000hp estimate is usually a calculation based on fuel consumption during the run.
Here's the article on how they estimated Schumacher's hp. (11,051)

http://www.hotrod.com/articles/don-s...torque-sensor/
__________________
Carl
IDGAS Group Charter Member
TheRevII is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -4. The time now is 09:55 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 1.98%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Yellow Bullet LLC
 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.